JP2020134766A - Imaging apparatus and method for controlling imaging apparatus - Google Patents

Abstract

To provide an imaging apparatus and a method for controlling an imaging apparatus during imaging which can easily change setting and cancelling of such a special imaging as a slow shutter imaging.SOLUTION: A predetermined imaging operation is detected in a device (S5), and one is selected from a first exposure setting and a second exposure setting according to whether the imaging operation satisfies a preset detection condition (S8, S9). On the basis of the selected exposure setting, an exposure time and a diaphragm value are controlled and images are taken continuously. If there is no detected input of the predetermined imaging operation while images are continuously taken (S5), the first exposure setting is selected (S9), and if there is a detected input of the predetermined imaging operation (S5:Yes), the second exposure setting is selected (S8).SELECTED DRAWING: Figure 10A

Description

The present invention relates to an imaging device and a control method of an imaging device that can quickly switch between imaging modes by a simple method when a plurality of imaging modes can be set.

An imaging device such as a digital single-lens camera generally has a plurality of shooting modes for exposure setting, for example, a program auto mode (P mode), a shutter speed priority mode (S mode), an aperture priority mode (A mode), and a manual mode (? M mode) and the like can be set. The P mode is a mode in which the camera detects the subject brightness, determines the optimum combination of shutter speed (exposure time) and aperture value (aperture aperture value) from the subject brightness, and shoots.

In the S mode, when the user manually specifies the shutter speed (exposure time), the camera detects the subject brightness and determines the aperture value and the sensitivity of the image sensor so that proper exposure can be obtained at the specified shutter speed. The mode. The A mode is a mode in which when the user manually specifies an aperture value, the camera detects the subject brightness and determines the shutter speed and the sensitivity of the image sensor so that an appropriate exposure can be obtained at the specified aperture value. The M mode is a mode in which the user specifies all the settings of the shutter speed, the aperture value, and the sensitivity of the image sensor.

In a normal digital single-lens reflex camera, the operation of switching the shooting mode is to determine one mode desired by the user from a plurality of modes by rotating a dial or the like. This switching operation takes time. Therefore, when shooting, if it is desired to switch the shooting mode in the middle, it is necessary to interrupt the shooting once and perform the switching operation. In order to deal with such a problem, an imaging device capable of switching the shooting mode by a simple operation has been proposed. For example, Patent Document 1 includes a means for selecting a shooting mode of either a general shooting mode or a special shooting mode, and a means for selecting one of a plurality of exposure modes in each shooting mode. An imaging device has been proposed. With this image pickup device, regardless of the selected exposure mode, you can change to the standard program mode that allows you to shoot with the standard shutter speed and aperture value according to the subject brightness simply by operating the program reset switch. Can be done.

Japanese Unexamined Patent Publication No. 7-114056

In the imaging device disclosed in Patent Document 1, changing from a state in which special imaging is performed to normal imaging is a simple operation of pressing a button. However, on the contrary, it is not possible to easily change from normal shooting to special shooting. This point will be described by taking as an example a case where slow shutter photography is performed as special photography. The slow shutter shooting is a special shooting such as panning, rotary panning, and zoom between exposures, and is a shooting method capable of expressing the movement of the subject.

When shooting a foot race in an athletic meet, consider a case where you want to shoot with a high-speed shutter so that blurring does not occur at the start and goal, but you want to shoot a running scene with a panning shot. In this case, it is necessary to change the shooting mode in the order of normal shooting → special shooting (slow shutter) → normal shooting during continuous shooting. In Patent Document 1 described above, in order to change from normal shooting to special shooting during continuous shooting, a dial operation must be performed. In order to perform this dial operation, shooting must be interrupted, and there is a high possibility that a shutter chance will be missed.

Also, considering the case of shooting subjects such as Bon festival dance and judo, these subjects are relatively dark and moving scenes. In such a scene, in general, it is desired to shoot at a high shutter speed without blurring the image of the subject. However, since a series of movements such as a specific movement and the timing of throwing are expressed by the image blur of the subject, it may be desired to take a picture with a slow shutter. In this case, since the scene to which the slow shutter is applied occurs at a random time, the conventional imaging device has no choice but to wait for the release start timing with the slow shutter set. In other words, when shooting other scenes except for specific movements and throwing timings, we give up shooting at an appropriate shutter speed, which is a condition that does not cause image blurring of the subject, and a state in which subject blurring is likely to occur (slow shutter speed). There is no choice but to shoot with.

Therefore, in the imaging device disclosed in Patent Document 1, if an attempt is made to express the movement of a subject at a slow shutter speed, there is a risk of failure shooting due to image blurring for subjects other than the target subject, so feel free to try it. I can't. That is, if a subject that is different from the desired subject and the subject that is desired to be shot appears without blurring the image of the subject while waiting for the timing to shoot while aiming at the subject with the desired movement, the subject is slowed down. Due to shutter shooting, there is a high possibility that image blurring of the subject will occur, resulting in unsuccessful shooting. Therefore, it has been difficult to achieve both slow shutter and motion depiction and acquisition of an image without image blur.

As described above, in the conventional imaging device, in order to switch from the P mode in which the exposure control value is automatically determined to the special shooting mode such as the S mode, the switching of the shooting mode by the operating member is complicated and takes time. .. Therefore, the user must wait for the shutter timing while the special shooting mode is set. If you shoot a shooting scene other than the target subject while waiting, you may fail.

The present invention has been made in view of such circumstances, and provides an image pickup apparatus and a control method for the image pickup apparatus so that the setting and cancellation for special photography such as slow shutter photography can be easily changed during photography. The purpose is to provide.

In order to achieve the above object, the imaging apparatus according to the first invention includes an imaging element that captures an image of a subject imaged by a photographing lens to generate an image, a shutter that controls an exposure time to the imaging element, and the above. An aperture that controls the incident light beam on the image pickup element, a first exposure setting unit that calculates the first exposure setting including the exposure time and aperture value based on the subject brightness obtained from the above image, and a preset exposure time. A second exposure setting unit that calculates the second exposure setting including the aperture value based on the subject brightness, an operation input unit that detects a preset shooting operation for the device, and the operation input unit. The first exposure setting calculated by the first exposure setting unit and the second exposure calculated by the second exposure setting unit depend on whether or not the shooting operation detected by the camera satisfies the preset detection conditions. Based on the selection unit that selects one of the settings and the exposure setting selected by the selection unit, the exposure time to the shutter and the aperture value to the aperture are controlled from the image pickup element. The selection unit has a control unit that continuously acquires an image, and the operation input unit is preset while the control unit continuously acquires an image from the image pickup element. If the input of the shooting operation is not detected, the first exposure setting calculated by the first exposure setting unit is selected, while if the input of the preset shooting operation is detected, the second exposure setting unit is calculated. Select the second exposure setting.

In the first invention, the image pickup apparatus according to the second invention captures a still image by selecting the second exposure setting calculated by the second exposure setting unit by the selection unit. At the time, after the next shooting operation is completed, the aperture is opened to the open side and then the live view shooting is switched to.
The image pickup apparatus according to the third invention further includes a focus control unit having a focus detection unit and a focus adjustment mechanism in the first invention, and the selection unit sets the second exposure setting in the control unit. When continuous shooting is being performed by selecting the still image, after the continuous shooting is completed, the focus control unit calculates the focus prediction value in the focus detection unit, and the focus adjustment mechanism based on the focus prediction value. Stops control by.

The image sensor according to the fourth invention further includes a camera shake correction unit having a camera shake correction mechanism in the first invention, and the control unit is stationary when the selection unit selects the second exposure setting. After the image is taken, the image sensor is centered by the camera shake correction unit during the time from the previous shooting to the next shooting.
The imaging apparatus according to the fifth invention is the first invention, wherein the operation input unit is a release switch mechanism for instructing the start and stop of imaging, and an operation switch on the side surface of the imaging lens. The operation switch is a momentary switch that outputs whether or not the operation switch is being pressed, and further detects the pressing of the operation switch as the preset shooting operation.
In the fifth aspect of the invention, the image pickup apparatus according to the sixth invention is the case where the control unit changes the setting of the operation switch during the still image shooting with the second exposure setting set by the selection unit. After the still image shooting is completed, the selection unit switches from the second exposure setting to the first exposure setting and continues shooting.

The image pickup apparatus according to the seventh invention further includes a display unit in the first invention, and the control unit has two exposure settings, a first exposure setting and a second exposure setting, for the display unit. Display characters or figures indicating that the exposure setting mode can be selected, and apply one of the first exposure setting and the second exposure setting selected by the selection unit during shooting. Is displayed in an identifiable manner.
In the first invention, the image pickup apparatus according to the eighth invention further includes a camera work detection means for detecting camera work on the image pickup apparatus, and the operation input unit is for photographing. The control unit has a release switch for instructing start and stop, and when the release switch is pressed when the camera work detecting means does not detect the camera work, the selection unit selects the first exposure setting. When the release switch is pressed when the camera work detecting means detects a specific camera work, the selection unit selects the second exposure setting and takes a picture.

In the eighth invention, the camera work detecting means is any one of the panning operation, the tilting operation, and the rolling operation of the device as the specific camera work set in advance. Detects one rotation operation.
The image pickup apparatus according to the tenth invention further includes a camera shake correction unit having a camera shake correction mechanism in the ninth invention, and the specific camera work detected by the camera work detecting means by the camera work detection is It is a panning operation, and when the camera work detecting means detects the panning operation, the control unit selects the second exposure setting and shoots a still image until the next still image shooting. At the time of, the camera shake correction unit is not centered.
In the eighth invention, the image pickup apparatus according to the eleventh invention further includes a camera shake correction unit having a camera shake correction mechanism, and the specific camera work detected by the camera work detection means by the camera work detection is a specific camera work. It is a zooming operation for the optical system of the apparatus, and when the camera work detecting means detects the zooming operation, the control unit selects the second exposure setting and shoots a still image, and then the next The camera shake correction unit is centered in the time until the still image is taken.

In the first invention, the image pickup apparatus according to the twelfth invention has an operation input unit having a release switch for instructing start and stop of photography and an operation switch on the side surface of the photographing lens. Is a momentary switch that outputs whether or not the switch is being pressed, and when the release switch is pressed as the preset shooting operation, the release switch is not detected when the operation switch is pressed. When the selection unit selects the first exposure setting and shoots, and the operation switch detects that the button is pressed, the selection unit selects the second exposure setting and shoots.

The control method of the imaging apparatus according to the thirteenth invention is to capture an image of a subject to generate an image, control the exposure time at the time of imaging, control the incident light beam at the time of imaging, and obtain from the image. A first exposure setting having a set of an exposure time and an aperture value calculated based on the subject brightness is set, a preset exposure time is acquired, and the exposure time is calculated based on the subject brightness and the set exposure time. A second exposure setting having a set aperture value is calculated, a preset shooting operation is detected for the device, and a second exposure setting is determined depending on whether or not the shooting operation satisfies the preset detection condition. One of the 1-exposure setting and the 2nd exposure setting is selected, and the exposure time and the aperture value are controlled based on the selected exposure setting to continuously acquire images, and the above-mentioned continuous is obtained. If you do not want to detect the input of the preset shooting operation while the image is being acquired, select the first exposure setting, and if you want to detect the input of the preset shooting operation, select the second exposure. Select a setting.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide an image pickup apparatus and a control method of an image pickup apparatus in which setting and cancellation of special imaging such as slow shutter imaging can be easily changed during imaging. When the special shooting is slow shutter shooting, the risk of failed shooting caused by slow shutter shooting can be reduced.

It is an external view of the digital camera which concerns on 1st Embodiment of this invention, FIG. 1A is a side view, and FIG. 1B is a plan view. It is a block diagram which mainly shows the electrical structure of the digital camera which concerns on 1st Embodiment of this invention. It is a block diagram which shows the function of the system controller of the digital camera which concerns on 1st Embodiment of this invention. The screen displayed in the finder in the digital camera according to the first embodiment of the present invention is shown. The menu screen displayed in the finder in the digital camera according to the first embodiment of the present invention is shown. In the digital camera according to the first embodiment of the present invention, it is a menu screen displayed on the finder, and is a diagram showing that the exposure is not appropriate. The program diagram when the P mode is set in the digital camera according to the 1st Embodiment of this invention is shown. A program diagram is shown when the S mode is set in the digital camera according to the first embodiment of the present invention. It is a timing chart which shows the operation when FUNK-SW is operated during continuous shooting in the digital camera according to 1st Embodiment of this invention. It is a flowchart which shows the photographing operation of the camera which concerns on 1st Embodiment of this invention. It is a flowchart which shows the photographing operation of the camera which concerns on 1st Embodiment of this invention. It is a flowchart which shows the photographing operation of the camera which concerns on 1st Embodiment of this invention. It is a flowchart which shows the modification of the photographing operation of the camera which concerns on 1st Embodiment of this invention. It is a block diagram which mainly shows the electrical structure of the digital camera which concerns on 2nd Embodiment of this invention. It is a block diagram which shows the function of the system controller of the digital camera which concerns on 2nd Embodiment of this invention. The screen displayed in the finder in the digital camera according to the second embodiment of the present invention is shown. It is a flowchart which shows the photographing operation of the camera which concerns on 2nd Embodiment of this invention. It is a flowchart which shows the photographing operation of the camera which concerns on 2nd Embodiment of this invention.

Hereinafter, an example applied to a digital camera (hereinafter referred to as a camera) as a preferred embodiment of the present invention will be described. This camera has an imaging unit, the subject image is converted into image data by the imaging unit, and the subject image is displayed in a live view on a display unit arranged on the back surface of the main body based on the converted image data. The photographer determines the composition and shutter timing by observing the live view display. During the release operation, the image data is recorded on the recording medium. The image data recorded on the recording medium can be reproduced and displayed on the display unit when the reproduction mode is selected.

Further, the camera according to the preferred embodiment of the present invention switches to one of the two exposure modes for shooting while detecting a specific operation input during continuous shooting (for example, FIG. 10A). S5Yes → S8, S6Yes → S8 in FIG. 12, and S4Yes → S8 in FIG. 16). Further, when the detection of a specific operation input is canceled, the camera switches to the other exposure mode (returns to the original state) and takes a picture (for example, S5No → S9 in FIG. 10A, S6No → S9 in FIG. See S4No → S9 in FIG. 16).

Further, the specific operation input may be an operation input by an operation switch (for example, FUNC-SW25 in FIGS. 1 and 2 and momentary switching) on the grip portion of the lens (for example, S5 in FIG. 10A and S6 in FIG. 12). (See), and moving the image pickup apparatus (camera work) itself may be an operation input (see, for example, the camera work detection unit 120 in FIG. 14 and S4 in FIG. 16).

Moreover, the two exposure modes are switched. In response to this switching of the exposure mode, one of the functions of the focus control means is stopped to follow the predicted focus (see, for example, S17Yes and S19 in FIGS. 10A, 12 and 16). In addition, the centering operation at the time of camera shake correction is also switched according to the switching of the exposure mode. That is, when switching between the two exposure modes by operating the lens operation switch, the centering operation of the camera shake correction mechanism is performed before the next shooting (see, for example, S45 and S47 in FIG. 11). When switching between the two exposure modes by detecting camera work operation (panning), the current position is held (for example, S46 in FIG. 17) without centering the camera shake correction mechanism before the next shooting. , S47).

The camera according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 11. 1A and 1B are external views of a camera according to the present embodiment, FIG. 1A is a side view, and FIG. 1B is a plan view. This camera is an interchangeable lens camera system, and the interchangeable lens 2 can be attached to the camera body 1 via a lens mount. Not limited to the interchangeable lens camera system, the lens barrel may be integrated with the camera body, of course.

A finder 16 and a setting dial 19 are arranged on the back side of the camera body 1. The finder 16 is an electronic viewfinder (EVF) in which the user observes the monitor through the eyepiece. The finder 16 may be a rear finder in which a monitor is arranged on the exterior surface of the camera body, in addition to the EVF for observing through the eyepiece.

A release SW17 and a mode dial 18 are arranged on the upper surface of the camera body 1. The release SW17 is a two-step switch linked to the release button. When the user pushes the release button (half-pressed state), the 1st release SW is turned on, and when the release button is pushed further (fully pressed state), the 2nd release SW Is turned on. The mode dial 18 is a dial that can be rotated. By rotating the mode dial 18, it is possible to set any of P mode, A mode, S mode, and M mode, moving image shooting mode, and C1 to C3 mode. The C1 to C3 modes are modes that can be arbitrarily set by the user, and the functions can be assigned on the menu screen or the like.

The setting dial 19 arranged at the upper part of the back surface of the camera 1 can be rotated, and changes the shooting setting value such as the exposure control value according to the shooting mode set by the mode dial 18. For example, when the S mode is set, the shutter speed can be changed by rotating the setting dial 19, and when the A mode is set, the setting dial 19 is rotated. By doing so, the aperture value can be changed.

The interchangeable lens 2 is provided with a function switch (FUNC-SW) 25. The position of the FUNC-SW25 is located on the left side surface of the interchangeable lens 2 so that it can be pushed in while shooting, and is easily pushed by the thumb. The FUNC-SW25 is a momentary switch that is turned on only while the user is pressing the momentary switch and turned off when the user releases the switch. The FUNC-SW25 can be assigned one of the functions that the user can arbitrarily select by setting the camera body 1. In the present embodiment, it is assumed that the FUNC-SW25 is assigned the forced S mode (see FIG. 5). The release SW17, the mode dial 18, the setting dial 19, and the FUNC-SW25 are interfaces for inputting user instructions to the camera.

When this function related to FUNC-SW25 is enabled, the mode dial 18 is switched to S mode as long as FUNC-SW25 is pressed, regardless of the function other than S mode. For example, even if the camera body 1 is set to the P mode, when the FUNC-SW25 is pressed down, the shooting mode becomes the S mode, and in this state, the shutter speed can be switched by rotating the setting dial 19. ..

FIG. 2 is a functional block diagram showing a main electrical configuration of the camera according to the present embodiment. As described above, the camera according to the present embodiment is an interchangeable lens type camera system, which is composed of a camera body 1 and an interchangeable lens 2, and both are electrically connected by a mount joint 3. The LCPU 26 and the system controller 11 can be connected and communicate with each other at the mount joint 3.

The camera body 1 includes an image sensor 10, a system controller 11, a blur correction microcomputer 12, a drive unit 13, an angular velocity sensor 14, a memory card 15, an EVF 16, a release SW17, a mode dial 18, and a setting dial. Has 19. Further, the interchangeable lens 2 includes an optical system 21, a focus drive unit 22, an aperture 23, an aperture drive unit 24, a FUNC-SW25, and an LCPU 26.

The optical system 21 includes a focus lens that can move in the optical axis direction, and forms a luminous flux from a subject in the vicinity of the image sensor 10 in the camera body 1. The focus drive unit 22 has a focus drive mechanism and a lens drive circuit, and moves the focus lens in the optical axis direction based on a signal from the LCPU 26 to change the focus position.

The diaphragm 23 is arranged in the optical path of the optical system 21, and the aperture diameter can be changed, and the amount of light reaching the image sensor 10 can be changed. The diaphragm 23 functions as a diaphragm that controls the incident light flux to the image sensor. The diaphragm drive unit 24 has a diaphragm drive mechanism and a diaphragm drive circuit, and changes the aperture diameter of the diaphragm 23 based on a signal from the LCPU 26.

As described above, the FUNC-SW25 employs a momentary switch in the present embodiment, and the operating state of this switch is output to the LCPU 26. The FUNC-SW25 functions as an operation input unit for detecting a preset shooting operation for the device (see, for example, S5 in FIG. 10A). This operation input unit may include a release SW17 in addition to the FUNC-SW25. That is, the operation input unit may have a release switch mechanism for instructing the start and stop of photographing and an operation switch arranged on the side surface of the photographing lens. This operation switch (for example, FUNC-SW25) is a momentary switch that outputs whether or not the operation switch is being pressed, and further detects the operation switch as a preset shooting operation. The operation input unit has a release switch mechanism (for example, release SW17) for instructing the start and stop of photographing, and an operation switch (for example, FUNC-SW25) on the side surface of the photographing lens.

The LCPU 26 is a processor including a CPU (Central Processing Unit) and peripheral circuits, and controls the inside of the interchangeable lens 2 according to a program stored in the memory. As the in-lens control, for example, the position of the focus lens is controlled via the focus drive unit 22 based on the communication with the system controller 11 in the camera body 1, and the aperture value is controlled by controlling the aperture drive unit 24. I do. In addition, the switch status of the FUNC-SW25 is periodically notified to the system controller 11.

The image sensor 10 is arranged in the camera body 1 in the vicinity where the subject image is formed by the optical system 21. The image sensor 10 is an individual image sensor such as a CCD image sensor or a CMOS image sensor, and converts a subject image into an electric signal. On the image pickup surface of the image pickup element 10, in addition to the image pickup pixels, phase difference pixels for detecting the deviation of the focus lens from the focusing position may be arranged. The image pickup element 10 functions as an image pickup element that captures an image of a subject imaged by a photographing lens and generates an image. Further, the image sensor 10 has an electronic shutter, that is, the exposure time to the pixels can be controlled.

The focal plane shutter 30 is arranged in front of the image pickup surface of the image sensor 10, and has a front curtain that allows light to enter the image pickup surface to start shooting, and a front curtain that shields the image pickup surface from light after the start of shooting to end the shooting. It has two curtains. The front curtain and the rear curtain operate by receiving a control signal for opening and closing each curtain from the system controller 11 to control the exposure time. The system controller 11 executes the following operations 1) to 3) for controlling the exposure time. 1) Before the start of shooting, the front curtain of the focal plane shutter 30 is closed and the rear curtain is opened to shield the image sensor from light. 2) The front curtain is opened at the same time as the start of shooting, and the image sensor 10 is exposed. 3) At the same time as the end of shooting, the rear curtain is closed to put the image sensor 10 in a light-shielding state again. When these three operations are performed, one shooting is completed. The period from the opening of the front curtain to the closing of the rear curtain is determined by the shutter speed TV value. In addition to the focal plane shutter mentioned above, there is no front curtain, and a normally open type shutter that uses charge discharge by reset as a substitute for the front curtain, and reset is used as a substitute for the front curtain, and reading is completely used as a substitute for the rear curtain. Any type of shutter, such as an electronically controlled electronic shutter, may be used.

The angular velocity sensor 14 detects the movement (angular velocity) of the camera body 1 and outputs the detection signal to the blur correction microcomputer 12. If the movement of the camera body 1 can be detected, an acceleration sensor or the like may be used instead of the angular velocity sensor. The drive unit 13 has a drive mechanism and moves the image sensor 10 in a plane orthogonal to the optical axis.

The blur correction microcomputer 12 is a processor having a CPU and peripheral circuits, and the CPU controls for camera shake correction according to a program stored in a memory. The blur correction microcomputer 12 calculates the image movement that occurs on the image pickup surface of the image pickup device 10 based on the detection result of the angular velocity from the angular velocity sensor 14, and controls the drive unit 13 so as to cancel the image movement. The blur correction microcomputer 12 starts the blur correction drive based on the instruction of the system controller 11 and outputs the control status to the system controller 11. Further, the blur correction microcomputer 12 or the system controller 11 also detects camera work such as panning and rotation of the camera body 1 based on the detection result of the angular velocity from the angular velocity sensor 14. Camera work refers to the action of the user moving the camera for shooting.

The blur correction microcomputer 12 and its peripheral circuits (mechanisms) function as a camera shake correction unit having a camera shake correction mechanism. The drive unit 13 functions as a camera shake correction mechanism for moving the image sensor according to the control signal output from the blur correction microcomputer 12. The blur correction microcomputer 12 functions as a camera shake correction circuit that controls the drive unit 13 to move the image sensor and controls to reduce camera shake. Further, the camera shake correction circuit controls the drive unit 13 to center the image sensor (see, for example, S47 in FIG. 11).

The memory card 15 is an electrically rewritable non-volatile memory and can be loaded into the camera body 1. The memory card 15 records image data that has been image-processed for recording by the system controller 11. The EVF 16 performs live view display based on the image data acquired by the image sensor 10, and also reads out the image data recorded on the memory card 15 and displays the image data for reproduction. Further, the EVF 16 also displays a menu screen or the like. The EVF 16 also displays a shooting mode and the like on the screen when the live view is displayed (see FIGS. 4 and 15). The EVF 16 has a function as a display unit.

The release SW17 detects the user's shooting operation and notifies the system controller 11. The mode dial 18 notifies the system controller 11 of the shooting mode set by the user. The setting dial 19 detects the rotation operation performed by the user and notifies the system controller 11. The system controller 11 changes the setting contents such as the aperture value and the shutter speed based on the shooting mode set by the mode dial 18 and the rotation of the setting dial 19.

The system controller 11 is a processor having a CPU and peripheral circuits, and the CPU controls the entire camera body 1 according to a program stored in the memory. Further, the system controller 11 communicates with the LCPU 26 and indirectly controls the interchangeable lens 2 via the LCPU 26. Further, as described above, the system controller 11 performs a blur correction operation via the blur correction microcomputer 12 to reduce blur generated in the image.

Further, the system controller 11 has an image processing circuit as a peripheral circuit, and is used for image processing for live view display, image processing for recording, and playback display for the image data read from the image pickup element 10. Image processing is also performed. The system controller 11 controls the aperture 23, the mechanical shutter, the ISO sensitivity, and the like based on the manually set shooting mode and the manually set exposure conditions (shutter speed value, aperture value). When the image sensor 10 has a phase difference pixel, the system controller 11 calculates the amount of deviation of the focus lens based on the phase difference pixel signal and controls the focus adjustment of the focus lens (phase difference AF). When the image sensor 10 does not have a phase difference image, the focus of the focus lens is adjusted by so-called contrast AF based on the image data from the image sensor 10.

Further, the system controller 11 has a first exposure setting (for example, P) calculated by the first exposure setting unit depending on whether or not the shooting operation detected by the operation input unit satisfies a preset detection condition. It functions as a selection unit for selecting one of the mode) and the second exposure setting (for example, S mode) calculated by the second exposure setting unit (see, for example, S8 and S9 in FIG. 10A). The system controller 11 functions as a control unit that continuously acquires an image from the image sensor by controlling the exposure time to the shutter and the aperture value to the aperture based on the exposure setting selected by the selection unit (for example). , S15, S23, S31, etc. in FIG. 10A). When the operation input unit does not detect the input of the preset shooting operation while the system controller 11 as the selection unit continuously acquires the image from the image sensor, the first exposure setting unit is used. When the calculated first exposure setting is selected and the input of the preset shooting operation is detected, the second exposure setting calculated by the second exposure setting unit is selected (for example, S5, S8 in FIG. 10A, See S9).

When the selection unit selects the second exposure setting calculated by the second exposure setting unit and shoots a still image, the control unit performs the live after opening the aperture after the next shooting operation is completed. Switch to view shooting (see, for example, S27 in FIG. 10B). Therefore, after shooting a still image with the second exposure setting, the aperture is opened and then the live view is restored, so that the focus adjustment can be started immediately. When the selection unit selects the second exposure setting and continuously shoots still images, the control unit calculates the focus prediction value in the focus detection unit by the focus control unit after the next continuous shooting is completed. , The control by the focus adjustment mechanism based on the predicted focus value is stopped (see, for example, S17 and S19 in FIG. 10A). As a result, it is possible to prevent the influence of the decrease in focus accuracy in prediction and shorten the calculation time.

After the selection unit selects the second exposure setting and shoots a still image, the control unit centers the image sensor by the camera shake correction unit during the time from the previous shooting to the next shooting (for example, the figure). 11 (see S45 and S47). As a result, it is possible to prevent the occurrence of blurring due to camera shake as much as possible even when shooting with a slow shutter. In addition, if there is a change in the operation switch setting during still image shooting with the second exposure setting set by the selection unit, the control unit sets the second exposure setting after the still image shooting is completed. Then, switch to the first exposure setting and continue shooting. For example, in FIG. 9, even if FUNC-SW is turned on at time t7, the mode is not switched from P mode to S mode until the shooting of the still image is completed at time t8. Therefore, since the shooting mode is changed after the still image shooting is completed, the shooting mode is changed in the middle, and failure due to overexposure or underexposure does not occur.

In addition, the control unit causes the display unit to display characters and figures indicating that two exposure setting modes, the first exposure setting and the second exposure setting, can be selected, and selects the characters and figures during shooting. The application of any one of the first exposure setting and the second exposure setting selected by the unit is displayed in an identifiable manner (see, for example, S8 and S9 in FIGS. 4 and 10A). As the identifiable display method, for example, characters or figures may be displayed, colors may be changed, or display forms such as blinking may be changed. Further, as shown in FIG. 4, the characters and figures of the selected exposure setting may be displayed large, and the characters and figures of the non-selected exposure setting may be displayed small.

Next, the internal configuration of the system controller 11 will be described with reference to FIG. Each of the processing blocks 111 to 119 shown in FIG. 3 is realized by a peripheral circuit and / or a CPU and a program in the system controller 11.

The image pickup / reading unit 111 has an image pickup / reading circuit, and reads out image data from the image pickup element 10 based on the pixel output. When the image sensor 10 has a phase difference pixel, the signal from the phase difference pixel is also read out.

The image processing unit 112 has an image processing circuit, inputs image data read from the image pickup element 10, and performs various image processing on the input image data. As various image processing, the image data is converted into the data in the display format of EVF16. The EVF output unit 113 has an image output circuit, and causes the EVF 16 to display an image based on the image data converted by the image processing unit 112. Further, as image processing of the image processing unit 112, the image data taken by still image shooting is converted into a data format for recording on a memory card or the like. The memory card writing unit 114 has a data writing circuit, and records the data converted for recording on the memory card 15.

The photometric unit 115 has a photometric circuit, extracts luminance information from the image data output from the image pickup / readout unit 111, and calculates a subject luminance value. The value of the subject brightness calculated here is a BV value (subject brightness indicated by the APEX value).

The aperture control unit 116 has an aperture control circuit, and determines an AV value (aperture value indicated by an APEX value) based on the BV value detected by the photometric unit 115 and the shooting mode. That is, when the P mode is set, it is based on the BV value detected by the photometric unit 115 and the set ISO sensitivity (sensor sensitivity, SV value) according to the program diagram shown in FIG. Then, the aperture value (AV value) and the shutter speed (TV value) are calculated. When the S mode is set, the BV value detected by the photometric unit 115 and the set shutter speed value (TV value) are used according to the program diagram shown in FIG. The aperture value (AV value) and ISO sensitivity (sensor sensitivity, SV value) are calculated. The aperture control unit 116 functions as a first exposure setting unit that calculates an exposure time and a first exposure setting including an aperture value based on the subject brightness obtained from the image (see, for example, S9 in FIGS. 7 and 10A). ). Further, the aperture control unit 116 functions as a second exposure setting unit that calculates a second exposure setting including an aperture value based on a preset exposure time and subject brightness (for example, FIGS. 8 and 10A). See S8).

The shutter control unit 130 has a shutter control circuit and controls the opening / closing time of the focal plane shutter 30 based on the shutter speed (TV value) calculated from the aperture control unit 116. Further, when controlling the electronic shutter of the image sensor 10, a signal for instructing the image sensor 111 to indicate the exposure time of the image sensor 10 based on the shutter speed (TV value) calculated from the aperture control unit 116. To convey

The distance measuring unit 117 has a distance measuring circuit, extracts phase difference pixel data from the image data output from the image pickup / reading unit 111, and calculates the defocus amount (defocus amount) of the focus lens. The defocus amount calculation unit 118 has a defocus amount calculation circuit, and converts the focus position indicated to the interchangeable lens 2 based on the calculation result by the distance measuring unit 117. In addition, the defocus amount calculation unit 118 can perform motion prediction for predicting the position of the focus lens after a predetermined time by using a plurality of defocus amounts detected at predetermined time intervals (for example, FIG. 10A). See S19). The distance measuring unit 117 and the defocus amount calculating unit 118 function as a focus detecting unit.

The LCPU communication unit 119 has a communication circuit, and notifies the LCPU 26 in the interchangeable lens 2 of the AV value converted by the aperture control unit 116 and the focus position converted by the defocus amount calculation unit 118. When the image sensor 10 does not have the phase difference pixels, the control signal for focus lens position control is notified to the LCPU 26 by so-called contrast AF based on the data from the image pickup pixels.

Next, with reference to FIG. 4, the screen displayed on the finder 16 when the forced S mode is set will be described. A live view image is displayed in the display area of the finder screen 16a. However, in FIG. 4, the live view image itself is omitted, and only the information for shooting is shown. As shooting information, ISO sensitivity (ISO = 400 in FIG. 4A) is shown on the left side of the screen, and shutter speed (1/1000 second in FIG. 4A) and aperture value are shown on the lower side of the screen. (F2.8 in FIG. 4A) and exposure compensation (± 0.0 in FIG. 4A) are displayed. Furthermore, the set shooting mode is displayed in the lower left corner of the screen.

In FIG. 4A, "P" 16ap is displayed large as the set shooting mode, and "S" 16as is displayed small beside it. This display is when the forced S mode is selected. In this state, when the user instructs the release SW17 to shoot, the exposure is controlled in the P mode, while when the user instructs the FUNC-SW25 to shoot, the exposure is controlled in the S mode. The display of the exposure control value such as the shutter speed described above (see FIG. 4A) shows the value when the P mode is selected.

When the FUNC-SW25 is pressed down in the state shown in FIG. 4A, the finder screen 16b shown in FIG. 4B is displayed during the pressing operation. In the lower left corner of this screen, "S" 16bp is displayed large as a shooting mode, and "P" 16bp is displayed small beside it. This display is also when the forced S mode is selected, and when the user instructs the shooting with the release SW17, the exposure control is performed in the P mode, and when the shooting is instructed by the FUNC-SW25, the exposure control is performed in the S mode. Be done.

On the finder screen 16b of FIG. 4B, exposure control values such as a shutter speed when shooting in the S mode are displayed. That is, the ISO sensitivity (ISO = 100 in FIG. 4B) is shown on the left side of the screen, and the shutter speed (1/125 seconds in FIG. 4B) and the aperture value (FIG. 4) are shown on the lower side of the screen. In (b), F5.6) and exposure compensation (± 0.0 in FIG. 4B) are displayed.

In this way, when the forced S mode is set and the FUNC-SW is pressed down, the exposure control values such as the shutter speed and aperture value when shooting in the S mode are displayed on the finder screen 16b, and the FUNC-SW is displayed. When the pressing of is stopped, exposure control values such as shutter speed and aperture value when shooting in P mode are displayed on the finder screen 16a. Therefore, when the forced S mode is set, it is possible to easily check the exposure control values for the case of shooting in the S mode and the case of shooting in the P mode.

A method of setting the forced S mode will be described with reference to FIG. The finder screen 16c is a screen for setting the function assignment of the FUNC-SW25. The user may display a menu screen on the finder 16 and select from the menu screens. In FIG. 5, “L-Fn” refers to the lens function button FUNC-SW25, and in this camera, various functions can be assigned to the FUNC-SW25. By setting the state shown in FIG. 5, the forced S mode is assigned to the FUNC-SW25. Since the text of the forced S mode function is displayed on the screen 16c, the user can easily understand the forced S mode.

FIG. 6 shows a display when the brightness in the shooting field of view is out of the interlocking range when the FUNC-SW25 is pressed down. In the example shown in FIG. 6, the "P" display 16ds shown in the lower left corner of the finder screen 16d is displayed in red, and the shutter speed 16dsp is blinked in red to make the user visually recognize that shooting with proper exposure is not possible. .. Note that this display is an example and may be changed as appropriate. The determination of whether or not it is out of the interlocking range will be described later together with the program diagram shown in FIG.

Next, the exposure control in the P mode will be described with reference to the program diagram shown in FIG. 7. The aperture value and shutter speed are determined based on the BV value obtained from the result of photometric measurement of the shooting field of view and the EV value (EV = BV + SV) obtained from the ISO sensitivity SV value of the image sensor 10. FIG. 7 is a program diagram in which the ISO sensitivity is set to 100, the horizontal axis is the APEX value of the shutter speed, the vertical axis is the APEX value of the aperture value, and the diagonal broken line is the EV value. When the ISO sensitivity is 200, the portion where the shutter speed changes from 1/30 moves one square to the right. Every time the ISO sensitivity is doubled, it moves to the right by one square.

In this camera system, since the distance can be measured when the aperture value is as bright as F8, the aperture value, the ISO sensitivity of the image sensor, and the shutter speed are determined so as to be F8 or less. That is, at EV8 or lower, the aperture value is fixed at F2.8 and the shutter speed is changed so as to have an appropriate exposure. Further, in the range where the EV value is 8 <EV ≦ 14, the aperture value and the shutter speed value are changed so as to obtain proper exposure. Further, in the range of the EV value of 14 <EV ≦ <16, the aperture value is fixed at F8 and the shutter speed is changed so as to obtain an appropriate exposure. Further, when the EV exceeds 16, the shutter speed is fixed at 1/1000 second, and the aperture value is changed so as to have an appropriate exposure.

Next, the exposure control in the S mode, that is, the shutter speed value (TV value) priority mode will be described with reference to the program diagram shown in FIG. In the S mode, the sensor sensitivity (SV value) and the aperture value (AV value) are determined based on the BV value of the shooting field of view and the shutter speed (TV value) specified by the user. In FIG. 8, the horizontal axis is the APEX value (ISO sensitivity, SV value) of the sensor sensitivity, the vertical axis is the APEX value (AV value) of the aperture value, and the diagonal broken line is the BV-TV value. As shown in the figure, the sensor sensitivity and the aperture value are determined by the value of BV-TV. That is, the shutter speed TV value is manually set by the user, and the brightness BV value is determined by the brightness of the subject. The sensor sensitivity (SV value) and the aperture value (AV value) are determined so that the proper exposure is obtained for the TV value and the BV value. In the program line shown in FIG. 8, since −8 to 5 is the interlocking range, if the value is other than that, the exposure will be under or over. In this case, the user is warned by the display as shown in FIG.

Next, with reference to FIG. 9, an operation of switching from shooting in P mode to shooting in S mode by operating the FUNC-SW25 during continuous shooting will be described. In FIG. 9, the horizontal axis direction indicates the passage of time.

The FUNC-SW column indicates the on / off state of the FUNC-SW25. In the example shown in FIG. 9, the FUNC-SW25 is initially off, and is turned on when the user presses the FUNC-SW25 at time t7. Then, at time t12, the user finishes pressing the FUNC-SW25 and returns it to the original position, so that the FUNC-SW25 is turned off. Below the FUNC-SW column shows the shooting mode. The shooting mode is P mode because FUNC-SW25 is initially off. At time t7, when the user pushes down the FUNC-SW25 and then the still image shooting (STILL) ends (time t8), the shooting mode switches to the S mode. Further, at time t12, when the user releases the finger from the FUNC-SW25, the shooting mode returns to the P mode. In this way, when the FUNC-SW25 is pressed, the shooting mode changes from the exposure mode before being pressed to the S mode. However, if it is pressed during still image exposure, the mode changes to S mode after waiting for the still image shooting to end.

When the shooting mode is the P mode, the live view (LV) display imaging (time t1 to t2, t4 to t5) and the still image shooting imaging (time t3 to t4, t6 to t8) are repeated. In still image capture, the shutter speed and aperture value are controlled so that the exposure is appropriate in the P mode. Even when the shooting mode is the S mode, the live view display imaging (time t8 to t9) and the still image shooting imaging (time t10 to t11) are repeated. In still image capture, the sensor sensitivity and aperture value are controlled so that the exposure is appropriate in the S mode.

In the exposure control, metering 1 to 3 (ML1 to ML3 in FIG. 9) is performed based on the image data acquired for the live view image. Further, the aperture 23 is stopped down (AS in FIG. 9) before the still image shooting (time t3 to t4). After that, metering is performed based on the image data acquired for the live view display. The diagonal lines at times t3 to t4, t5 to t6, etc. in the imaging column indicate that the image is not output because it is in a non-exposed state due to narrowing down.

The exposure control by the aperture 23 is periodically performed during the live view display. The aperture 23 narrows down before shooting a still image, but during continuous shooting, the second shot is taken while maintaining the aperture of the first shot. With this aperture control, the aperture time can be shortened and the number of continuous shooting frames can be increased. In addition, when the mode shifts to S mode (time t8) and slow shutter shooting is performed, the aperture needs to be further narrowed down (AS2 in FIG. 9), and after shooting, autofocus (hereinafter abbreviated as AF) is performed. The aperture is opened so that AF can be performed, or the aperture is reopened to an aperture value that allows AF (AO in FIG. 9), and then the live view display is restored. In the slow shutter, for example, the camera shake limit second time is obtained from the focal length of the optical system 21, and the shutter speed is slower than that.

In addition, focus control is performed based on the image data acquired for the live view display. That is, distance measurement 1 and 2 (MR1 and MR2 in FIG. 9) are performed, and the focusing position of the focus lens at the time of still image shooting is predicted based on the distance measurement values at two time points (PD in FIG. 9) to focus. Drive (MD in FIG. 9). After that, the distance is measured based on the image data acquired for the live view display, the focusing position of the focus lens at the time of still image shooting is predicted, and the focus lens is driven. Normally, the focus is driven after making a prediction. However, in the first shooting (time t14 to t15) that returns to the P mode after the slow shutter shooting in the S mode, the focus lens is driven based on the distance measurement result without making a prediction. This is because, when slow shutter photography is performed, a long time has passed since the previous distance measurement result, and the prediction accuracy deteriorates (see S17 and S19 in FIG. 10A).

The camera shake correction is controlled differently for the live view (LV) display and the still image shooting (STILL). The camera shake correction during live view display (LV) is literally a correction suitable for live view, and does not correct all the detected camera shake for the image acquired during live view, but detects it. Correct a part of camera shake. Specifically, it corrects only the camera shake component (high frequency) that affects the appearance of the live view image (visibility when framework is used), or controls to gradually return the correction part to the center. Or something. That is, when displaying a live view image on a display unit such as EVF16, image blur correction is performed so that there is no problem when the framework of the imaging device is used based on the displayed image by the user.

Further, the camera shake correction for still image shooting (STILL) is literally a camera shake correction suitable for still image shooting, and corrects all camera shake detected during still image shooting. The exposure time for still image shooting is shorter than the live view display period, and prior to still image shooting, centering is performed so that the center of the image sensor 10 is aligned with the optical axis of the optical system 21. If so, it is possible to perform camera shake correction so as to remove all camera shake that occurs during the still image exposure time.

As described above, the camera shake correction switches the correction characteristics between live view and still image shooting. When the transition from continuous shooting of slow shutter shooting in S mode to P mode is performed, centering is performed once and then still image shooting is performed (see S45 and S47 in FIG. 11). This is because blurring is likely to occur in the case of slow shutter photography, so the process proceeds to photography after centering to secure a sufficient correction range. The camera shake detecting means detects by using a sensor that detects the movement amount (angular velocity) of the device, such as the angular velocity sensor 14, and calculates the image movement amount from the angular velocity.

Next, the shooting operation of the camera in the present embodiment will be described with reference to the flowcharts shown in FIGS. 10A and 10B. This flow is realized by the system controller 11 controlling each part in the camera 1 and each part in the interchangeable lens 2 via the LCPU 26 according to the program stored in the memory. It is assumed that the user has set the forced S mode (see FIG. 5) on the menu screen before the start of this flow.

When the release SW17 is pressed halfway, the task shown in the flowchart shown in FIG. 10A starts. This task performs a series of steps from the start of shooting to the end of shooting. After the task is completed, the state before the start of shooting is restored, and when the release SW17 is pressed halfway, this task is started again.

When this task starts, first, metering is performed (S1). In this step, the photometric unit 115 calculates the subject brightness BV value based on the image data from the image sensor 10. Subsequently, distance measurement is performed (S3). In this step, the distance measuring unit 117 and the defocus amount calculation unit 118 determine the defocus amount for moving the focus lens to the in-focus position based on the data from the phase difference pixels arranged in the image sensor 10. calculate. When the phase difference pixels are not arranged in the image sensor 10, the focus of the focus lens is adjusted by so-called contrast AF.

Next, the system controller 11 communicates with the LCPU 26 and determines whether or not the FUNC-SW25 is pressed down (S5). The user operates the FUNC-SW25 arranged on the interchangeable lens 2 when he / she wants to perform exposure control in the S mode in order to take a panning shot or the like. In this step, it is determined whether or not this operation has been performed. As described above, the FUNC-SW25 is assigned the function of L-Fn (lens function button).

As a result of the determination in step S5, when the FUNC-SW25 is being pressed down, the exposure control in the S mode is set (S8). In this step, the image sensor is based on the brightness value (BV value) calculated in step S1 and the shutter speed value (TV value) manually set by the user, based on the S mode program diagram shown in FIG. The sensitivity (SV value) of 10 and the aperture value (AV value) are determined. Further, when the exposure control by the S mode is set, the EVF 16 displays that the S mode is set as shown in the finder screen 16b of FIG.

On the other hand, as a result of the determination in step S5, if the FUNC-SW25 is not being pressed down, the exposure control in the P mode is set (S9). In this step, the aperture control unit 116 determines the aperture value and the shutter speed based on the P-mode program diagram shown in FIG. 7. When the exposure control by the P mode is set, the EVF 16 displays that the P mode is set, as shown in the finder screen 16a of FIG.

When the S mode exposure control is performed in step S8 or the P mode exposure control is performed in step S9, it is next determined whether the 2nd release SW is on or whether it is the second continuous shooting (S11). .. In this step, it is determined whether or not the release SW17 is fully pressed and the 2nd release SW is turned on, or whether or not the continuous shooting is the second shot. As a result of this determination, if the 2nd release SW is not turned on and it is not the second continuous shooting, this flow ends. If the 1st release SW is turned on after the end, the process is restarted from step S1. On the other hand, as a result of the determination in this step, if the 2nd release SW is on, the process proceeds to step S13 or less and shooting is started. Further, as a result of the determination in this step, if it is the second continuous shooting, the process proceeds unconditionally (regardless of whether the release SW17 is fully pressed) and proceeds to step S13.

If the result of the determination in step S11 is Yes, the live view (LV) is stopped (S13). In this step, the system controller 11 stops displaying the live view on the EVF 16 based on the image data from the image sensor 11. Subsequently, the narrowing down is performed (S15). In this step, the system controller 11 instructs the LCPU 26 of the target aperture value when it is necessary to further reduce the current aperture value in order to obtain an appropriate exposure.

Subsequently, it is determined whether or not the shutter was the slow shutter last time (S17). If the result of this determination is not a slow shutter, a moving object is predicted (S19). In the case of the slow shutter last time, the accuracy of moving object prediction is low because the interval between the previous distance measurement time and the current distance measurement time is long. Therefore, the moving object is predicted only when it is not the slow shutter last time. On the contrary, when the S mode is selected and the image is taken at the slow shutter speed, the motion prediction is prohibited.

When the moving object is predicted in step S19, or as a result of the determination in step S17, if the previous time was the slow shutter, the focus drive is then performed (S21). The system controller 11 instructs the LCPU 26 of the focus lens position when the focus lens position is calculated by the moving object prediction, and the focus position based on the distance measurement result in step S3 when the moving object prediction is not performed. .. The LCPU 26 drives the focus lens to the received focus position.

Next, it is determined whether or not the shutter is a slow shutter in the S mode (S25). If the determination result is Yes, the aperture is opened (S27). In this case, the aperture value does not have to be the maximum open value, but the aperture may be opened up to the aperture that can measure the distance (F8 in the present embodiment).

When the aperture is opened in step S27, or when the result of the determination in step S25 is No, the live view (LV) is started (S29). Although the live view was stopped during the still image shooting (see S13), the live view display is restarted because the still image shooting is completed.

Next, it is determined whether or not the 2nd is continued (S31). The user keeps the release SW17 pressed down when continuing continuous shooting. In this step, the determination is made based on the operating state of the release SW17. As a result of this determination, if 2nd is continued, the process returns to step S1 and continuous shooting is continued. On the other hand, if 2nd is not continued, this flow ends.

Next, the blur correction operation in the present embodiment will be described with reference to the flowchart shown in FIG. This flow is realized by the system controller 11 controlling each part in the camera 1 and each part in the interchangeable lens 2 via the LCPU 26 according to the program stored in the memory. In particular, in the blur correction operation, the blur correction microcomputer 12 controls the drive unit 13 based on the detection signal from the angular velocity sensor 14 according to the instruction from the system controller 11 according to the program stored in the memory. This flowchart is a control flow of a task for controlling camera shake correction.

Similar to the flowcharts shown in FIGS. 10A and 10B, when the release switch 17 is pressed halfway, this task (camera shake correction control task) is activated. First, the live view (LV) camera shake correction starts (S41). In this step, the system microcomputer 11 instructs the blur correction microcomputer 12 to perform the LV camera shake correction operation. In the LV camera shake correction, as described above, not all the detected camera shakes are corrected, but a part of the detected camera shakes is corrected.

Subsequently, it is determined whether or not there is 2R (S43). When the user observes the EVF 16 and determines that the shutter timing is reached, the release SW17 is fully pressed. Therefore, in this step, the state of the 2nd release SW (2R) that is turned on by fully pressing is detected, and if the 2nd release switch is turned on, it is determined as Yes. As a result of this determination, if the 2nd release switch is off, it waits for it to be turned on.

As a result of the determination in step S43, when the 2nd release switch is turned on, it is next determined whether or not the L-Fn is being pressed and the shutter is slow (S45). Here, it is determined whether or not the user is pushing down L-Fn (FUNC-SW25) and the shutter speed is a slow shutter. As described above, the slow shutter is, for example, a case where the camera shake limit second time is obtained from the focal length of the optical system and the shutter speed is slower than that.

If the result of the determination in step S45 is Yes, centering is performed (S47). Here, when the system controller 11 outputs a centering instruction to the camera shake microcomputer 12, the camera shake microcomputer 12 is moved by the drive unit 13 so that the center of the image sensor 10 coincides with the optical axis of the optical system 12. This is a case where the forced S mode is set and the user presses the release SW17 fully during continuous shooting to take a still image. Prior to this still image shooting, the center of the image sensor 10 is aligned with the optical axis. By performing this process, the range in which the image sensor 10 can move is maximized in order to prevent camera shake during still image shooting.

When centering is performed in step S47, or when the result of the determination in step S45 is No, the still image camera shake correction is started (S49). The system controller 11 instructs the camera shake microcomputer 12 to start the still image camera shake correction. The camera shake microcomputer 12 moves the image sensor 10 by the drive unit 13 so as to remove the camera shake based on the detection signal from the angular velocity sensor 14. As described above, the still image camera shake correction corrects all the camera shake detected during the still image shooting.

Subsequently, shooting is performed (S51). Here, the image sensor 10 acquires image data for still image recording, and performs image processing for recording on the image data acquired by the image processing unit 112. This image data is recorded in the memory card 15 by the memory card writing unit 114.

When the shooting is finished, the still image camera shake correction is finished (S53). Here, the system controller 11 instructs the camera shake microcomputer 12 to end the still image camera shake correction. When the still image camera shake correction is completed, the live view (LV) camera shake correction is subsequently started (S55). Here, as in step S41, the system microcomputer 11 instructs the blur correction microcomputer 12 to perform the LV camera shake correction operation.

Next, it is determined whether or not 2R is continued (S57). The user keeps the release SW17 fully pressed during continuous shooting. In this step, it is determined whether or not the 2nd release SW (2R) is kept on. As a result of this determination, if 2R is continuing, the process returns to step S45 and continuous shooting is continued. On the other hand, when 2R is off, the flow shown in FIG. 11 ends. If the user presses the release SW17 halfway again, the process starts from step S41.

As described above, the camera according to the present embodiment has an exposure control unit (photometric unit) that controls exposure by the P mode that automatically determines the appropriate exposure and the S mode that determines the appropriate exposure based on the manually set shutter speed. 115, aperture control unit 116, shutter control unit 130, etc.), a release SW17 instructing the start of shooting, and a switch (FUNC-SW25) to which a forced S mode can be assigned. Then, when shooting is instructed by the release SW17, shooting is performed in P mode (S9), while when shooting is instructed by FUNC-SW25, shooting is performed in S mode (S8). ). Therefore, if you want to shoot in S mode during continuous shooting, you can shoot according to your intention by operating the FUNC-SW25.

Next, a modified example of this embodiment will be described with reference to the flowchart shown in FIG. In the first embodiment, even if the FUNC-SW25 is pushed down, the shooting is executed after the release SW17 is fully pushed down (see S5, S11, and S23). In other words, even if the FUNC-SW25 is pushed down, the shooting is not executed unless the release SW17 is fully pushed down. On the other hand, in this modification, when the FUNC-SW25 is pressed down, shooting is executed even if the release SW17 is not fully pressed. In other words, pushing down the FUNC-SW25 is treated as an operation equivalent to pushing down the release SW17 fully (2R).

The configuration of this modification is the same as that of the first embodiment, and is the same as that of the first embodiment except that the flowchart shown in FIG. 10A is replaced with the flowchart shown in FIG. Further, the flowchart shown in FIG. 12 is the same as the flowchart shown in FIGS. 10A and 10B except that S5 to S11 in FIG. 10A are replaced with S6 to S9 in FIG. Therefore, the differences will be mainly described.

The flowchart shown in FIG. 12 starts when the release SW17 is half-pressed or the FUNC-SW25 is pressed. When this flow starts, first, photometry is performed (S1) and distance measurement is performed (S3).

Subsequently, it is determined whether or not the FUNC-SW has been pushed down (S6). When the user wants to shoot with the function assigned to the FUNC-SW25 (S mode in this modification), the user pushes down the FUNC-SW25. In this step, it is determined whether or not this pressing operation has been performed. As described above, the FUNC-SW25 is assigned the function of L-Fn (lens function button).

When the FUNC-SW25 is pressed down as a result of the determination in step S6, the S mode exposure control is set (S8). Here, the system controller 11 sets the exposure control in the S mode. When the S mode is set, the process proceeds to step S13 or lower regardless of the state of the release SW17, and still image shooting is performed in step S23.

On the other hand, if the FUNC-SW25 is not pressed down as a result of the determination in step S6, then it is determined whether the 2nd release SW is on or whether it is the second continuous shooting (S7). In this step, it is determined whether or not the release SW17 is fully pressed and the 2nd release SW is turned on, or whether or not the continuous shooting is the second shot. As a result of this determination, if the 2nd release SW is not turned on, or if it is not the second continuous shooting image, this flow is terminated, and if the 1st release SW is turned on, the process is restarted from step S1. ..

On the other hand, as a result of the determination in step S7, when the 2nd release SW is on, or when it is the second continuous shooting, the P mode exposure control is set (S9). In this case, since the FUNC-SW25 is not pressed down, the P mode exposure control is set.

When the S mode exposure control is set in step S8 or the P mode exposure control is set in step S9, the live view (LV) is then stopped (S13). Since the processing after this step is the same as the processing in the first embodiment shown in FIGS. 10A and 10B, the description thereof will be omitted.

As described above, in this modification, when the FUNC-SW25 is pressed down, the still image is taken in the S mode, and when the release SW17 is fully pressed, the still image is taken in the P mode. Is done. This modification is common to the first embodiment in that two operation input means of FUNC-SW25 and release SW17 are provided. However, when the two operation input means are operated, the selection and switching of the two exposure setting modes (S mode and P mode) in the still image shooting are different from those in the first embodiment. When both operation input means are pressed, the shooting in the S mode is prioritized. As described above, according to the present modification, the shooting mode is switched depending on which switch is pressed, so that the mode can be switched and shot without interruption of the shooting action.

Next, the second embodiment of the present invention will be described with reference to FIGS. 13 to 17. In the first embodiment, when the FUNC-SW25 is pressed down, the shooting mode is switched from the P mode to the S mode. On the other hand, in the second embodiment, when the user performs a specific camera work such as changing the direction of the camera and the camera work is detected, the mode is switched to the shooting mode such as the S mode. ing. As will be described later, the blur correction microcomputer 12 acquires the direction and value of the angular velocity accompanying the movement of the device from the angular velocity sensor 14, and detects a specific camera work such as a panning operation based on this information.

FIG. 13 is a block diagram showing a main electrical configuration of the camera according to the present embodiment. The camera according to the present embodiment is also an interchangeable lens type camera system like the camera according to the first embodiment, and is composed of a camera body 1 and an interchangeable lens 2, both of which are electrically connected by a mount joint 3. It is connected to the.

In the configuration according to the present embodiment, as compared with FIG. 2 according to the first embodiment, the FUNC-SW25 is not arranged in the present embodiment, and the zoom encoder (Zoom-Enc) 27 is arranged instead. There is. When the optical system 21 is a zoom lens, the zoom encoder 27 detects the focal length and outputs a signal corresponding to the focal length to the LCPU 26. In the first embodiment as well, when the optical system 21 is a zoom lens, a zoom encoder may be provided. Since the other configurations are the same as those in FIG. 2, detailed description thereof will be omitted.

Next, the internal configuration of the system controller 11 will be described with reference to FIG. Also in FIG. 14, each processing block 111-120 is realized by a peripheral circuit and / or a CPU and a program in the system controller 11.

The configuration according to the present embodiment is the same as that of FIG. 3 except that the serial communication unit 121 and the camera work detection unit 120 are added in the present embodiment as compared with FIG. 3 according to the first embodiment. .. Therefore, the differences will be mainly described, and detailed description of the same configuration as in FIG. 3 will be omitted.

The blur correction microcomputer 12 acquires a detection value related to the angular velocity detected by the angular velocity sensor 14, and from this angular velocity, the angular velocity when rotating in the yaw / pitch / roll direction is detected biased in one direction. And when the predetermined angular velocity is exceeded, it is output as a detection condition for panning and rotation operations. Further, the blur correction microcomputer 12 transmits to the system controller 11 whether or not the panning and rotation operations are detected (determination result).

As described above, the panning and rotation detection methods use the conditions of bias in one direction with respect to the detected angular velocity and the magnitude of the angular velocity. As the angular velocity, the detection result of the angular velocity sensor 14 is used. There have been many proposals for panning and rotation detection methods, and any one of them may be adopted.

The camera work detection unit 120 receives the camera work detection result from the blur correction microcomputer 12, and periodically receives the focal length information from the zoom encoder 27 via the LCPU communication unit 119. When the fluctuation of the focal length information received from the zoom encoder 27 is larger than a predetermined value, it is recognized that the zoom operation is being performed quickly. The camera work detection unit 120 has a camera work detection circuit, and the camera work detection circuit may detect camera work by a combination of software and hardware.

The camera work detection unit 120 detects the camera work according to the following (1) to (3). When any one of these camera works (1) to (3) is detected, the mode shifts to the S mode as described later. It should be noted that the detection of any one of these camera works may be omitted, and of course, the detection of the other camera work may be performed.

(1) Panning: When the angular velocity sensor 14 detects panning (rotational movement in the yawing direction or rotational movement in the pitching direction of the device), it is determined that panning is being taken.
(2) Rotation operation: When the rotation operation in the roll direction of the device is performed, it is determined that the rotation panning is performed.
(3) Zooming operation: When the zoom operation is faster than the predetermined value, it is determined that the zoom flow (zoom shooting between exposures) is performed.

The camera work detection unit 120 functions as an operation input unit for detecting a preset shooting operation for the device (see, for example, S4 in FIG. 16). The camera work detection unit 120 functions as a camera work detection means for detecting camera work on the image pickup apparatus (see, for example, S4 in FIG. 16). When the release switch is pressed when the camera work detecting means does not detect the camera work, the system controller 11 selects the first exposure setting for shooting, and the camera work detecting means selects a specific camera work. If the release switch is pressed when the above is detected, the selection unit functions as a control unit that selects the second exposure setting and performs shooting (see, for example, S4, S8, and S9 in FIG. 16). For example, when shooting with the first exposure setting that is less likely to cause blurring and detecting camera work to be shot with the slow shutter, the camera work is automatically switched to the second exposure setting, so shooting is not interrupted and slow shutter shooting is possible. You can switch. One example of specific camerawork detected by the camerawork detecting means in camerawork detection is to detect a zooming operation on the optical system of the device. Further, another example of the specific camera work preset by the camera work detecting means is to detect any one of the panning operation, the tilting operation, and the rolling operation of the device.

Similar to the case of the first embodiment, the blur correction microcomputer 12 is a processor having a CPU and peripheral circuits, and the CPU controls for camera shake correction according to a program stored in the memory. .. That is, the blur correction microcomputer 12 receives the angular velocity detection signal from the angular velocity sensor 14, and moves the image sensor 10 by the drive unit 13 so as to remove the camera shake according to the instruction from the system controller 11. Further, the blur correction microcomputer 12 performs centering to move the center of the image sensor 10 so as to coincide with the optical axis of the optical system 21. The blur correction microcomputer 12 and the like function as a camera shake correction unit having a camera shake correction mechanism.

When the camera work detecting means detects the panning operation, the system controller 11 corrects camera shake in the time from when the selection unit selects the second exposure setting and shoots a still image to when the next still image is shot. It functions as a control unit that does not center the unit (see, for example, S46 and S47 in FIG. 17). Therefore, for example, when taking a panning shot, it is possible to suppress fluctuations in the field of view and make it easier to follow the subject. When the camera work detecting means detects a zooming operation, the system controller 11 corrects camera shake in the time from when the selection unit selects the second exposure setting and shoots a still image to when the next still image is shot. It functions as a control unit for centering the unit (see, for example, S46 and S47 in FIG. 17). Further, as a preset shooting operation, when the release switch is pressed while the system controller 11 does not detect the pressing of the operation switch, the selection unit selects the first exposure setting and shoots, and the operation switch When is detected to be pressed, the selection unit functions as a control unit that selects the second exposure setting and shoots (see, for example, S4, S8, and S9 in FIG. 16). As a result, for example, when the release switch is fully pressed without pressing the operation switch (momentary switch), the image is taken with the first exposure setting (for example, P mode), and the operation switch (for example, the momentary switch) is pressed. In this case, it is possible to shoot with the second exposure setting (for example, S mode).

Next, the display screen 16e of the finder 16 when the PS mode is set will be described with reference to FIG. The PS mode is a mode in which the normal P mode is switched to the S mode under a specific condition specified by the user. The PS mode is set by assigning this mode to the custom setting 1 and setting the mode dial 18 to C1. The setting to the PS mode is not limited to this method, and may be performed by another method such as providing a dedicated button.

When the PS mode is set, as shown in FIG. 15, the finder screen 16e shows that the “PS” mode 16 ep is assigned to the C1 of the mode dial 18 by the “C1” 16 ec. ..

Next, the shooting operation of the camera in the present embodiment will be described with reference to the flowchart shown in FIG. This flow is realized by the system controller 11 controlling each part in the camera 1 and each part in the interchangeable lens 2 via the LCPU 26 according to the program stored in the memory.

Compared with the flowcharts shown in FIGS. 10A and 10B according to the first embodiment, the flowchart of FIG. 16 according to the present embodiment is subjected to the same processing except that step S5 of FIG. 10A is replaced with step S4. There is. Therefore, only the differences will be described. Before the start of this flow, it is assumed that the user rotates the mode dial 18 and sets it to "C1".

When the release SW17 is pressed halfway, the task shown in the flowchart shown in FIG. 16 starts. This task performs a series of steps from the start of shooting to the end of shooting. After the task is completed, the state before the start of shooting is restored, and when the release SW17 is pressed halfway, this task is started again.

When the flow starts, first, metering (S1) and distance measurement (S3) are performed. Subsequently, it is determined whether or not the camera work is detected (S4). Here, it is determined whether or not the camera work detection unit 120 has detected at least one of (1) to (3) described above. When camera work is detected as a result of this determination, S mode exposure control is set (S8). For example, when the user pans for panning, rotates the camera for panning, or zooms quickly for inter-exposure zooming, the shooting mode switches from P mode to S mode. ..

On the other hand, if the camera work is not detected as a result of the determination in step S4, the P mode exposure control is set (S9). Here, since the camera work is not detected, the P mode, which is a normal shooting mode, is set. When the exposure control is set in step S8 or S9, shooting is executed in step S11 or lower. Since the processing for this photographing is the same as that in FIGS. 10A and 10B, the description thereof will be omitted.

Next, the blur correction operation in the present embodiment will be described with reference to the flowchart shown in FIG. This flow is also realized by the system controller 11 controlling each part in the camera 1 and each part in the interchangeable lens 2 via the LCPU 26 according to the program stored in the memory, as in FIG. 11 according to the first embodiment. To do. In particular, in the blur correction operation, the blur correction microcomputer 12 controls the drive unit 13 based on the detection signal from the angular velocity sensor 14 according to the instruction from the system controller 11 according to the program stored in the memory.

Comparing the flowchart of FIG. 17 according to the present embodiment with the flowchart of FIG. 11 according to the first embodiment, the same processing is performed except that step S45 of FIG. 11 is replaced with step S46. Therefore, only the differences will be described.

When the release SW17 is pressed halfway, the process shown in the flowchart shown in FIG. 16 starts. First, live view (LV) camera shake correction is started (S41), and it is determined whether or not there is 2R (S43). As a result of the determination in step S43, when there is 2R, that is, when the release SW17 is fully pressed, it is determined whether or not panning is detected (S46). Here, the camera work detection unit 120 determines whether or not panning is performed within the camera work conditions.

If panning is not detected as a result of the determination in step S46, centering is performed (S47), and then the process proceeds to step S49. On the other hand, when panning is detected, centering is skipped and the process proceeds to step S49. For example, in the case of camera work in which the center of the screen does not move, such as a zooming operation or a rolling operation, centering is performed. On the other hand, in the case of camera work in which the center of the screen moves, such as a panning operation, centering is prohibited.

The reason why centering is prohibited during the panning operation is that if the camera shake correction centering is performed while the panning operation is being performed for panning, the shooting field of view will be greatly moved. If the shooting field of view changes, it will be difficult to follow the subject. Therefore, in the camera work of the panning operation, the centering of the camera shake correction is not performed. On the other hand, in rotary panning and zoom panning camera work, it is desirable that the optical axis is fixed, so the camera shake correction should be centered before shooting so that the camera shake correction is effective.

In the present embodiment, the mode is switched to the S mode only by performing camera work, so that the mode can be changed without interrupting the shooting. In addition, since the camera shake correction also performs the optimum operation according to the camera work, the risk of failure in a series of continuous shooting can be reduced.

As described above, in each of the embodiments and modifications of the present invention, the subject image is imaged to generate an image, the exposure time at the time of imaging is controlled, and the incident luminous flux at the time of imaging is controlled. .. Further, a first exposure setting having a set of an exposure time and an aperture value calculated based on the subject brightness obtained from the image is set (see, for example, S9 in FIG. 10A), a preset exposure time is acquired, and the subject is obtained. A second exposure setting having the brightness and the aperture value calculated based on the set exposure time is calculated (see, for example, S8 in FIG. 10A). Whether the device detects a preset shooting operation (see, for example, S5 in FIG. 10A, S6, S7 in FIG. 12, and S4 in FIG. 16) and this shooting operation satisfies the preset detection condition. Depending on whether or not, one of the first exposure setting and the second exposure setting is selected (for example, S8 and S9 in FIG. 10A, S8 and S9 in FIG. 12, S8 in FIG. See S9). Based on the selected exposure setting, the exposure time and aperture value are controlled to continuously acquire images, and while continuously acquiring images, the input of preset shooting operations is not detected. When (for example, see S5No in FIG. 10A), select the first exposure setting (see, for example, S9 in FIG. 10A), and detect the input of a preset shooting operation (see, for example, S5Yes in FIG. 10A). ), The second exposure setting is selected (see, for example, S8 in FIG. 10A). Therefore, the setting for special shooting such as slow shutter shooting can be easily changed during shooting simply by performing a preset shooting operation. When the special shooting is slow shutter shooting, the risk of failed shooting caused by slow shutter shooting can be reduced. In addition, a still image is usually taken with the first exposure setting that is less likely to cause blurring, and when a preset shooting operation is detected (for example, when the momentary switch is pressed), the second exposure setting is taken with the specified exposure time. Take a still image with. You can switch to and return to slow shutter shooting without interrupting the shooting action.

In one embodiment of the present invention, a case where two modes, P mode and S mode, are switched as the shooting mode has been described. However, other shooting modes, for example, A mode and M mode may be switched. Further, the mode is not limited to the shooting mode, and various modes may be switched, such as switching between a normal image processing mode and a special image processing mode such as an art mode.

Further, although the camera shake correction function is arranged in the camera body 1, it may be arranged in the interchangeable lens 2 and the camera shake correction may be performed by driving a part of the lenses of the optical system 21. Further, although the FUNC-SW25 was arranged on the side surface of the interchangeable lens 2 as the operation input unit, it may be arranged at a position other than this, or may be arranged on the camera body 1. In addition to the release SW17, the release function may be a touch operation on the rear LCD screen.

Further, a part or all of each part in the system controller 11 may be a hardware circuit, or may be realized by software by a CPU and a program. In addition, a hardware configuration such as a gate circuit generated based on a program language described by Verilog-HDL (Hardware Description Language) or VHDL (Very high speed integrated circuits Hardware Description Language) may be used, and a DSP (Digital Signal Processor) may be used. ) May be used for configuration. Of course, these may be combined as appropriate. Further, the element is not limited to the CPU, and may be any element that functions as a controller. Further, for example, each part may be a separate processor each configured as an electronic circuit, or may be each circuit part in a processor composed of an integrated circuit such as an FPGA (Field Programmable Gate Array). Good. Alternatively, a processor composed of one or more CPUs may execute the functions of each unit by reading and executing the computer program recorded on the recording medium.

Further, in each embodiment and modification of the present invention, a digital camera has been described as a device for photographing, but the camera may be a digital single-lens reflex camera, a mirrorless camera, a compact digital camera, or a video. It may be a camera for moving images such as a camera or a movie camera, and further, a camera built in a mobile phone, a smartphone, a mobile information terminal, a personal computer (PC), a tablet computer, a game device, a medical camera, a microscope, etc. It may be a camera for scientific equipment, a camera mounted on a car, or a camera for surveillance. In any case, the present invention can be applied to any device for photographing having a plurality of modes.

Further, among the techniques described in the present specification, the controls mainly described in the flowchart can be set by a program, and may be stored in a recording medium or a recording unit. The recording method to the recording medium and the recording unit may be recorded at the time of product shipment, the distributed recording medium may be used, or may be downloaded via the Internet.

Further, in one embodiment of the present invention, the operation in the present embodiment has been described using a flowchart, but the order of the processing procedures may be changed, or any step may be omitted. Steps may be added, and specific processing contents in each step may be changed.

Further, even if the scope of claims, the specification, and the operation flow in the drawings are explained using words expressing the order such as "first" and "next" for convenience, in the parts not particularly explained, It does not mean that it is essential to carry out in this order.

The present invention is not limited to the above embodiment as it is, and at the implementation stage, the components can be modified and embodied without departing from the gist thereof. In addition, various inventions can be formed by an appropriate combination of the plurality of components disclosed in the above-described embodiment. For example, some components of all the components shown in the embodiment may be deleted. In addition, components across different embodiments may be combined as appropriate.

1 ... Camera body, 2 ... Interchangeable lens, 3 ... Mount coupling part, 10 ... Image sensor, 11 ... System controller, 12 ... Blur correction microcomputer, 13 ... Drive unit , 14 ... angular speed sensor, 15 ... memory card, 16 ... finder (EVF), 17 ... release switch (SW), 18 ... mode dial, 19 ... setting dial, 21 ...・ ・ Optical system, 22 ・ ・ ・ Focus drive unit, 23 ・ ・ ・ Aperture, 24 ・ ・ ・ Aperture drive unit, 25 ・ ・ ・ Function switch (FUNC-SW), 26 ・ ・ ・ LCPU, 27 ・ ・ ・ Zoom Encoder (Zoom-Enc), 30 ... Focal plane shutter, 111 ... Imaging / reading discrimination unit, 112 ... Image processing unit, 113 ... EVF output unit, 114 ... Memory card writing unit, 115: Optical metering unit, 116: Aperture control unit, 117: Distance measuring unit, 118: Defocus amount calculation unit, 119: LCPU communication unit, 130: Shutter control unit

Claims (13)

An image sensor that captures the image of the subject imaged by the taking lens and generates an image,
A shutter that controls the exposure time to the image sensor,
A diaphragm that controls the incident luminous flux on the image sensor,
A first exposure setting unit that calculates the first exposure setting including the exposure time and aperture value based on the subject brightness obtained from the above image.
A second exposure setting unit that calculates a second exposure setting including an aperture value based on a preset exposure time and the subject brightness.
An operation input unit that detects preset shooting operations for the device,
The first exposure setting calculated by the first exposure setting unit and the second exposure setting unit calculate depending on whether or not the shooting operation detected by the operation input unit satisfies the preset detection condition. A selection unit that selects one of the second exposure settings
A control unit that controls the exposure time to the shutter and the aperture value to the aperture based on the exposure setting selected by the selection unit to continuously acquire an image from the image sensor.
Have,
The selection unit sets the first exposure when the operation input unit does not detect the input of the preset shooting operation while the control unit continuously acquires images from the image sensor. An image sensor characterized in that the first exposure setting calculated by the unit is selected, while the second exposure setting calculated by the second exposure setting unit is selected when detecting the input of a preset shooting operation. .. When the selection unit selects the second exposure setting calculated by the second exposure setting unit and shoots a still image, the control unit opens the aperture after the next shooting operation is completed. The image pickup apparatus according to claim 1, wherein the image pickup apparatus is switched to live view photography after opening the image. Further having a focus detection unit and a focus control unit having a focus adjustment mechanism,
When the selection unit selects the second exposure setting and continuously shoots a still image, the control unit focuses on the focus detection unit by the focus control unit after the next continuous shooting is completed. The image pickup apparatus according to claim 1, further comprising calculating a predicted value and stopping control by the focus adjusting mechanism based on the predicted focus value. It also has a camera shake correction unit that has a camera shake correction mechanism.
After the selection unit selects the second exposure setting and shoots a still image, the control unit centers the image sensor by the camera shake correction unit during the time from the previous shooting to the next shooting. The image pickup apparatus according to claim 1. The operation input unit has a release switch mechanism for instructing the start and stop of shooting, and an operation switch on the side surface of the shooting lens.
The operation switch according to claim 1, wherein the operation switch is a momentary switch that outputs whether or not the operation switch is being pressed, and further detects the pressing of the operation switch as the preset shooting operation. Imaging device. If there is a change in the setting of the operation switch during the still image shooting with the second exposure setting set by the selection unit, the control unit will perform the second exposure setting after the still image shooting is completed. 2. The image pickup apparatus according to claim 5, wherein the image pickup apparatus is characterized by switching from the exposure setting to the first exposure setting and continuing shooting. It also has a display
The control unit causes the display unit to display characters and figures indicating that two exposure setting modes, a first exposure setting and a second exposure setting, can be selected, and during shooting, the above-mentioned Distinguishably display that one of the first exposure setting and the second exposure setting selected by the selection unit is applied.
The imaging device according to claim 1. Further having a camera work detecting means for detecting the camera work on the image pickup apparatus,
The operation input unit has a release switch for instructing the start and stop of shooting.
The control unit
When the release switch is pressed when the camera work detecting means does not detect the camera work, the selection unit selects the first exposure setting and shoots.
When the release switch is pressed when the camera work detecting means detects a specific camera work, the selection unit selects the second exposure setting and shoots.
The imaging device according to claim 1. The eighth aspect of the present invention, wherein the camera work detecting means detects any one of a panning operation, a tilting operation, and a rolling operation of the device as the predetermined specific camera work. Imaging device. It also has a camera shake correction unit that has a camera shake correction mechanism.
The specific camera work detected by the camera work detecting means in the camera work detection is a panning operation.
When the camera work detecting means detects the panning operation, the control unit sets the second exposure setting and shoots a still image in the time from the shooting of the still image to the next shooting of the still image. The image pickup apparatus according to claim 9, wherein the camera shake correction unit is not centered. It also has a camera shake correction unit that has a camera shake correction mechanism.
The specific camera work detected by the camera work detecting means in the camera work detection is a zooming operation on the optical system of the apparatus.
When the camera work detection means detects a zooming operation, the control unit sets the second exposure setting and shoots a still image in the time from when the camera work detection means detects a zooming operation until the next still image is shot. The image pickup apparatus according to claim 8, wherein the camera shake correction unit is centered. The operation input unit has a release switch for instructing the start and stop of shooting and an operation switch on the side surface of the shooting lens.
The above operation switch is a momentary switch that outputs whether or not it is being pressed down.
The control unit performs the preset shooting operation.
If the release switch is pressed without detecting the press of the operation switch, the selection unit selects the first exposure setting and shoots.
When the operation switch detects a press, the selection unit selects the second exposure setting and shoots.
The imaging device according to claim 1. Image the subject image to generate an image,
By controlling the exposure time for the above imaging,
By controlling the incident luminous flux during the above imaging,
A first exposure setting having a set of exposure time and aperture value calculated based on the subject brightness obtained from the above image is set.
Get a preset exposure time and
A second exposure setting having the subject brightness and the aperture value calculated based on the set exposure time is calculated.
Detects preset shooting operations for the device and
Depending on whether or not the above shooting operation satisfies the preset detection conditions, one of the first exposure setting and the second exposure setting is selected.
Based on the above selected exposure settings, the exposure time and aperture value are controlled to continuously acquire images.
If the input of the preset shooting operation is not detected during the continuous acquisition of images, the first exposure setting is selected, and if the input of the preset shooting operation is detected, the first 2 Select the exposure setting,
A control method for an imaging device, characterized in that.

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